Lockable Display

ABSTRACT

This document describes a lockable display and techniques enabling use of a lockable display. The techniques can enable computing devices to lock and unlock a display using little or no power and with a seamless design. The techniques and apparatuses can also enable integration between a lockable display and various computing devices, including to create a nearly seamless physical and functional design.

BACKGROUND

Mobile computing devices have, over the last few years, gained substantial computing and graphics capabilities. These mobile devices are capable of presenting content at resolutions and speeds only performed by large computing devices, such as desktop computers, of a few year ago.

These mobile computing devices, however, are limited by their small displays. To address this limitation, some users buy larger displays, plug these displays into their mobile devices, and, through various setting changes, device drivers, and so forth enable their mobile devices to present content on a larger display. This solution, however, struggles to be mobile—in many cases this solution approximates a desktop sort of system only with the mobile device acting as the processor, but with many of the same limitations as current desktops, such as being bulky, heavy, or slow to set up.

Some other partial solutions exist, such as docking stations or other peripheral attachments to a mobile device. These are often bulky and heavy, but can be fairly quick to set up. They still struggle, however, with poor integration and undesirable form factors. Even the better peripheral display systems often fail to provide a satisfactory design because of objects that jut out or holes that pierce the mobile device or display body. Examples include exposed latches, latch holes, tabs hooks, and tab reception detents, to name just a few. Some techniques have attempted to address this failure in design through electromagnets or permanent magnets. Electromagnets, however, are unsatisfactory due to their power requirements and low magnetic force. Current techniques that use permanent magnets require excessive force to separate the display from the mobile device. These are but a few of the limitations of current techniques and devices.

SUMMARY

This document describes a lockable display and techniques enabling use of lockable displays. The techniques enable computing devices to lock and unlock a display using little or no power and with a seamless design. The techniques and apparatuses can also enable integration between a lockable display and various computing devices, including to create a nearly seamless physical and functional design.

In one embodiment, for example, a lockable display locks to an existing display of a tablet or laptop computer and, with little or no effort from the user, a dual-display system is created that is both physically and functionally integrated. A user may, simply by moving a lockable display near to an existing display, cause the lockable display to be strongly locked and have content currently on the existing display to be switched over to the lockable display or jointly presented over both displays, thereby substantially increasing the total display area used by the tablet or laptop.

This summary is provided to introduce simplified concepts concerning a lockable display, which is further described below in the Detailed Description. This summary is not intended to identify essential features of the claimed subject matter, nor is it intended for use in determining the scope of the claimed subject matter.

BRIEF DESCRIPTION OF THE DRAWINGS

Embodiments of techniques and apparatuses for switchable magnetic locks are described with reference to the following drawings. The same numbers are used throughout the drawings to reference like features and components:

FIG. 1 illustrates an example environment in which a lockable display can be implemented.

FIG. 2 illustrates an example lockable display having a switchable magnetic lock and two lock regions.

FIG. 3 is a detailed illustration of the switchable magnetic lock of the lockable display of FIG. 2.

FIG. 4 illustrates simplified, cross-section views of the switchable magnetic lock in the lockable display of FIG. 2.

FIG. 5 illustrates the laptop and lockable display of FIG. 1 where the devices are not locked and the switchable magnetic lock is in a null state.

FIG. 6 illustrates portions of the laptop and lockable display of FIG. 5 where a directed magnetic field locks the devices together.

FIG. 7 illustrates example methods enabling use of a lockable display.

FIG. 8 illustrates three examples of the lockable display of FIG. 1 locked to other devices, including various orientations of locked formats.

FIG. 9 illustrates two more examples of the lockable display of FIG. 1 locked in an upright dual-screen format and in a process of being locked in an upright triple-screen format.

FIG. 10 illustrates an example device embodying, or in which techniques may be implemented that enable use of, a lockable display.

DETAILED DESCRIPTION

Overview

This document describes techniques using, and apparatuses including, lockable displays. These techniques and apparatuses can enable locking and unlocking of a lockable display to existing displays or computing devices with low or no power consumption and a seamless physical and/or functional design.

Consider, for example, a current tablet computing device for which a user wishes to increase screen real estate. One current technique includes a standalone display with a mechanical stand and a cable to connect the standalone display to the tablet. On plugging this standalone display to the tablet, a user may then install a device driver or other software for the display to act as an accessory display, select how the displays work (e.g., which is primary, which is left or right or top or bottom, how the current content is split up, if at all). After these various setup steps, the end result is likely still two displays that are not oriented one with the other—the tablet may be horizontal and the standalone vertical, or both may be at different viewing angles, and so forth.

A second current technique includes a docking station where a mobile device, such as a laptop or smartphone, is plugged into a docking station, which is in turn connected to a display. While this system, at least after an initial setup, can be relatively easy to use it generally causes the computing device to cease to use its own display, instead switching it over to the docking station's display. This of course does not take advantage of all of the available screen real estate, as it often does not use the laptop or smartphone's display. Further, this is a bulky and generally heavy solution, thereby making it impractical for mobile use.

The described techniques and apparatuses, however, enable a lockable display to be used. Assume that instead of the bulky and often difficult-to-use displays noted above, a lockable display is used. In this case, the lockable display can be locked to an existing display or the mobile computing device's body. The locking manner can include a switchable physical or mechanical lock, which, when the lockable display is near or touching the existing display or device, can be locked to the display, even automatically when a controller senses the proximity of the lockable display and activates an actuator effective to lock the display. For a switchable magnetic lock, the controller may cease a null state of a permanent magnet and instead direct the permanent magnet's magnetic field to a magnetically permeable material in the other device. By so doing, the lockable display is drawn in and locked to the existing display or device's body. In both cases, the controller may cease to use power as the locks, including the magnetic circuit, do not require power to be maintained. Note that in contrast to some current techniques, when locked the lockable display and the existing display or device to which it is locked can remain mobile—a user can pick the locked-together items as one unit and move them without concern about the items coming apart.

To release the lockable display, the controller may sense a touch of the user on a portion of the lockable display at which a person is likely to touch when attempting to release the lockable display, such as through a gesture made to a body of the lockable display. The controller then activates a magnetic-lock actuator effective to null the magnetic field, which instead of directing the magnetic field to a magnetically permeable material nulls the magnetic field, thereby unlocking the lockable display. The lockable display then can easily be moved. Note that the magnetically permeable material (whether in the existing display, device body, or lockable display) can be seamlessly integrated into the display or device as can the permanent magnet and a magnetic-lock actuator.

This is but one example of how techniques and/or apparatuses enabling use of a lockable display can be performed. Techniques and/or apparatuses are referred to herein separately or in conjunction as the “techniques” as permitted by the context. This document now turns to an example environment in which the techniques can be embodied after which two example apparatuses having or accompanying a lockable display, various example methods, and an example device are described.

Example Environment

FIG. 1 is an illustration of an example environment 100 in which techniques using, and an apparatus including, a switchable magnetic or mechanical lock may be embodied. Environment 100 includes a computing device 102 having a switchable magnetic lock 104, switchable mechanical lock 106, sensors 108, a controller 110, one or more computer-readable storage media (storage media) 112, and one or more computer processors (processors) 114.

Switchable magnetic lock 104 includes a permanent magnet 116 (or magnets), magnetic-field directors 118, and a magnetic-lock actuator 120. Permanent magnet 116 is configured such that its magnetic field is capable of being directed. In some embodiments, permanent magnet 116 includes a diametrically magnetized magnet having a magnetic field polarized perpendicular to a long axis of the magnet such that rotating the magnet or field directors surrounding the magnet is effective to direct the magnetic field perpendicular to the long axis. These and other magnets and structures are set forth in greater detail below.

Magnetic-field directors 118 of switchable magnetic lock 104 are configured to direct the magnetic field of permanent magnet 116 to a null state and to a directed state. In the directed state, a magnetic circuit can be completed with a magnetically permeable material of another device (e.g., of an existing display, a lockable display, and a computer's body). These other devices may include various movable and/or removable parts and peripherals, without limitation to displays and computing device bodies. When the directed state is completed, the other device is locked to computing device 102. Each of magnetic-field directors 118 may include an isolated magnetic circuit configured to selectably direct the magnetic field as noted. Alternatively or in addition to use of magnetic-field directors 118, switchable magnetic lock 104 may include a magnetic shield material to null or assist in nulling the magnetic field, such as Mu-metal, though this is not required.

Magnetic-lock actuator 120 of switchable magnetic lock 104 is configured to move permanent magnet 116 and/or magnetic-field directors 118. magnetic-lock actuator 120 can be powered or unpowered. Thus, magnetic-lock actuator 120 may include a simple mechanical device that can be manually operated by a user effective to direct the magnetic field so that switchable magnetic lock 104 locks or unlocks. Alternatively, magnetic-lock actuator 120 can be powered and controlled, either manually or by controller 110. In the powered and controlled embodiment, magnetic-lock actuator 120 moves permanent magnet 116 and/or field directors 118 effective to direct the magnetic field to a null state or a directed state. Magnetic-lock actuator 120 may include various different types of electro-mechanical devices, such as a solenoid or geared vibrator motor.

Note that magnetic-lock actuator 120 may be operated without using power in the manual case effective to change the state of switchable magnetic lock 104. Even in the powered case, however, power is not needed to maintain the state of switchable magnetic lock 104, rather, power is used to switch between the states. Switching between states can be done at low power and generally quickly, such that little power is used.

Switchable mechanical lock 106 includes a mechanical-lock actuator 122. Example switchable mechanical locks 106 and mechanical-lock actuators 122 are set forth in greater detail below.

Sensors 108 are capable of sensing a user's interaction with computing device 102 and/or an associated device or peripheral, such as moving a peripheral in proximity with computing device 102, touching computing device 102, and so forth. Sensors 108 may sense actively, passively, and/or responsive to an explicit or implicit selection.

In more detail, sensors 108 can include a capacitive sensor capable of sensing contact of a user touching computing device 102, a proximity detector, even for a particular type of device or unique device (e.g., through a radio-frequency identifier), or a sensor configured to sense a magnetically permeable material. Alternatively or additionally, sensors 108 may include a magnetic load sensor capable of sensing proximity of a device having a magnetic field, such as device having a digitizer or an LC circuit (e.g., an inductor-capacitor circuit capable of sensing a particular signal). In addition to being capable of sensing a user's interaction, sensors 108 may sense a current state of switchable magnetic lock 104, such as with hall-effect sensors, or switchable mechanical lock 106, such as through an electrical contact (e.g., a closed or open circuit) or many other manners.

Controller 110 is capable of locking and unlocking switchable locks 104, 106. In doing so, it may act responsive to indications, selections, and so forth to lock or unlock. Further, controller 110 may communicate with other entities, such as interface module 124, to cause a computing device (whether that computing device includes controller 110 or does not) to alter, switch, manage, or jointly present content on one or more displays.

To lock and unlock switchable locks 104, 106, controller 110 controls actuators 120, 122. For example, in a case where controller 110 controls mechanical-lock actuator 122 for switchable mechanical lock 106, controller 110 rotates a spiral lock (described below). In a case where controller 110 controls magnetic-lock actuator 120, assume that permanent magnet 116 is a diametrically magnetized magnet having a long axis. In such a case, controller 110 may power magnetic-lock actuator 120 to rotate the diametrically magnetized magnet about the long axis from a lock position to an unlock position. Controller 110 acts responsive to input, such as from a sensor indicating a user's implicit or explicit selection to lock or unlock switchable lock 104, 106. Controller 110 may also receive information indicating a current state of the switchable lock 104, 106.

Controller 110 can be embodied as part of, or separate from, switchable lock 104, 106. Controller 110 may also be implemented as computer-executable instructions stored on storage media 112 and executable by one or more processors 114, though this is not required. Alternatively or additionally, controller 110 can be embodied as hardware, firmware, and/or computer-executable instructions as noted above, in whole or in part.

Storage media 112 may include interface module 124 as well as various other applications and/or operating systems (not shown). Interface module 124 is capable of managing content presentation over one or more displays and, in some embodiments, interacts with controller 110 as noted herein.

As shown in FIG. 1, computing device 102 can each be one or a combination of various devices, here illustrated with six examples: a laptop computer 102-1, a tablet computer 102-2, a smartphone 102-3, a lockable display 102-4, and a gaming system 102-5, though other computing devices and systems, such as desktop computers, televisions, netbooks, media players, and cellular phones, may also be used. Note that lockable display 102-4 is included as an example of computing device 102, though it may or may not include some elements shown in FIG. 1, such as storage media 112 and processors 114. In some cases lockable display has computing resources and in some it does not. Further, lockable display 102-4 can be configured to lock to other computing devices 102 shown in FIG. 1.

Example Lockable Display Having a Switchable Magnetic Lock

FIG. 2 illustrates an example lockable display 102-4 having a switchable magnetic lock (internal and shown in FIG. 3) and two lock regions 202, 204. These lock regions 202, 204 may be smooth or include some sort of texture or structure. A shown in FIG. 2, both lock regions 202, 204 include a retention structure 206 having a non-smooth surface capable of reducing a shear force or redirecting a shear force to a strain force. Magnets are more-easily separated by shear forces than strain forces—it is easier to slide apart two magnets than it is to pull apart two magnets. The retention structure includes “ribs” or “bumps” or “serrations.” Each of these reduce or redirect shearing forces that may be applied to lock regions. Another way to look at these structures is like small tongue-and-groove structures used in carpentry.

Lockable display 102-4 may also include a low-power permanent magnet 208 (underneath or part of lock regions 202, 204) seamlessly integrated into retention structure 400, and a capacitive sensor 210 integrated seamlessly into a surface of lockable display 102-4. Lockable display 102-4 also includes a magnetic load sensor and hall-effect sensors, which are internal to lockable display 102-4 and are not illustrated.

Low-power permanent magnet 208 is shown within retention structure 206, though proximity rather than inclusion is sufficient. Low-power permanent magnet 208 provides another magnetic field in addition to that of the switchable magnetic lock. This other magnetic field is substantially less powerful than that of a diametrically magnetized magnet. It does not lock a device to lockable display 102-4 sufficient to prevent accidental removal, but instead retains tablet computer 102-2 so that tablet computer 102-2 does not fall off when the switchable magnetic lock nulls its more-powerful magnetic field. Other low-force or temporary retention manners may also or instead be used in conjunction with the switchable magnetic lock, though they are not required. Note that nulling the magnetic field includes substantially weakening the magnetic field or fully nulling the magnetic field. Thus, some small amount of magnetic field may remain when in the null state, such as an amount sufficient to provide the low-force retention manner set forth above.

As illustrated in detail in FIG. 3, lockable display 102-4 also or instead includes a switchable magnetic lock 302, shown in the foreground for visual clarity. Switchable magnetic lock 302 is illustrated with a magnetically permeable lock region 304 of tablet computer 102-2 and smartphone 102-3, both of FIG. 2, though here shown having a smooth rounded surface. This magnetically permeable lock region 304 has a magnetically permeable material capable of completing a magnetic circuit. Switchable magnetic lock 302 includes a diametrically magnetized magnet 306 and magnetic-field directors 308 proximate diametrically magnetized magnet 306. Note that switchable magnetic lock 302 can include an magnetic-lock actuator that is capable of rotating diametrically magnetized magnet 306 between a first position and a second position, the first position causing magnetic-field directors 308 to null the magnetic field and the second position causing magnetic-field directors 308 to direct the magnetic field to magnetically permeable lock region 304. Directing the magnetic field is described in greater detail below.

Magnetically permeable material of magnetically permeable lock region 304 can be located in multiple parts of tablet computer 102-2 or smart phone 102-3 as shown. Thus, assume that two portions are included within tablet computer 102-2 (and one for smartphone 102-3). In such a case, a user may select to lock tablet computer 102-2 into lockable display 102-4's retention structure 206 and thus lock the lock regions together.

Further, and as noted in part above, lockable display 102-4 includes controller 110 (not shown), which is capable of powering the magnetic-lock actuator to rotate diametrically magnetized magnet 306. In so doing, the rotation acts to release tablet computer 102-2 or smartphone 102-3 by releasing the magnetically permeable material of magnetically permeable lock region 304 from lock region 202, 204 (of FIG. 1) and thus a retention structure. Rotation also can act to lock the lock regions together, depending on the rotation.

By way of further illustration, consider FIG. 4, which illustrates a retention structure 400 and simplified, cross-section views 402 and 404 of switchable magnetic lock 302 sectioned across a long axis of diametrically magnetized magnet 306 and the length of tablet computer 102-2 (for cross-section view 402). Cross-section view 402 illustrates switchable magnetic lock 302 in a directed state, the directed state directing a magnetic field of diametrically magnetized magnet 306 toward retention structure 400 and thus lock region 304 of tablet computer 102-2. This directed state locks tablet computer 102-2 to retention structure 400. Field directors 406 direct this magnetic field as shown at direction 408.

Cross-section view 404 illustrates switchable magnetic lock 302 in a null state, the null state nulling the magnetic field of diametrically magnetized magnet 306 through field directors 406 as shown at nulling directions 410. Directions and manners in which the magnetic field is nulled may vary, including through a magnetic circuit disparate (e.g., opposite) from tablet computer 102-2. In this null state, tablet computer 102-2 is released and therefore unlocked. Low-power permanent magnet 208 of FIG. 2 (not shown in FIG. 4) may hold tablet computer 102-2 to retention structure 400 with low power sufficient to prevent tablet computer 102-2 from separating from lockable display 102-4 but enable a user to easily separate tablet computer 102-2 and lockable display 102-4. Note that diametrically magnetized magnet 306 is rotated about 90 degrees from the directed state shown in cross-section 402 to the null state shown in cross-section 404.

In this example of switchable magnetic lock 302 shown in FIG. 4, each of field directors 406 has an isolated magnetic circuit. This isolated magnetic circuit is capable of directing the magnetic field of diametrically magnetized magnet 306 in direction 408 and nulling direction 410 as shown in cross-sections 402 and 404, respectively.

FIG. 5 illustrates an embodiment where the switchable lock, here a switchable magnetic lock, is in a device other than a lockable display. Instead, the lockable display includes a structure by which to be locked, such as a mating physical locking mechanism or a magnetically permeable material (shown). FIG. 5 also illustrates in more detail ways in which a switchable magnetic lock may operate, whether in a lockable display or another device. To do so, FIG. 5 illustrates a simplified and magnified cross-section of a portion of laptop 102-1 of FIG. 1 with a switchable magnetic lock 502 in a null state (as shown, switchable magnetic lock can be on either side of an integrated display of laptop 102-1 or on both sides). FIG. 5 also illustrates a simplified and magnified cross-section of a portion of lockable display 102-4 with a magnetically permeable material 504 within a lock region 506.

Laptop 102-1 is illustrated with switchable magnetic lock 502 within on one or more body portions 508. Each body portion 508 includes a lock region 510 intended to mate with or hold fast to lock region 506 of lockable display 102-4. Note that while lockable display 102-4 is illustrated with magnetically permeable material 504 and laptop 102-1 is illustrated with switchable magnetic lock 502, these may be reversed and still be effective to lock and unlock lockable display 102-4 to and from laptop 102-1.

Switchable magnetic lock 502 is configured to switch being a lock state and an unlock state. An unlock state is created by a complete magnetic circuit, shown with magnetic field directions 512, which is effective to null a magnetic field of a permanent magnet 514 of switchable magnetic lock 502 using magnetic-field directors 516 and without using magnetically permeable material 504.

Note that, in a lock state, switchable magnetic lock 502 locks lock region 506 to lock region 510 by completing a magnetic circuit between permanent magnet 514 of switchable magnetic lock 502 and magnetically permeable material 504 using magnetic-field directors 516 when lock region 506 and lock region 510 are made proximate. The directed magnetic field of this lock state is illustrated at lock state 602 in FIG. 6. Note that magnetic field directions 604 and an axial orientation of permanent magnet 514 has changed from that of FIG. 5.

Note that switchable magnetic lock 502, in this example, locks these devices without mechanical dents, detents, or latches. This switchable magnetic lock 502 may also do so without being visible at all, as the magnetic field may pass through a smooth, seamless surfaces (e.g., lock regions 506 and 510 of FIG. 5) on laptop 102-1 and lockable display 102-4.

While not shown in FIGS. 5 and 6, locking and unlocking can be performed by controller 110 using magnetic-lock actuator 120. Thus, in a case where permanent magnet 514 is a diametrically magnetized magnet, controller 110 of switchable magnetic lock 502, which is an example of switchable magnetic lock 104 of FIG. 1, may power magnetic-lock actuator 120 to rotate a diametrically magnetized magnet between positions. These are shown in FIG. 5, resulting in a null state, and in FIG. 6, resulting in a lock state. In FIG. 6, magnetic-field directors 516 direct the magnetic field to lock region 506 and thus will lock lockable display 102-4 to laptop 102-1 when magnetically permeable material 504 is near to field directors 516. Likewise, the controller can power magnetic-lock actuator 120 to release lockable display 102-4.

In this powered example case, a controller can receive selections in the various manners set forth above. Thus, the controller may receive an indication that that a lockable display has locked to, or is beginning a process to lock to, a computing device or an existing display associated with the computing device, the computing device presenting content on the existing display. This may be responsive to proximity or user selection, for example, which is described above.

These and other capabilities and configurations, as well as ways in which entities of FIGS. 1-6 act and interact, are set forth in greater detail below. These entities may be further divided, combined, and so on. The environment 100 of FIG. 1 and the detailed illustrations of FIGS. 2-6 illustrate some of many possible environments and devices capable of employing the described techniques.

Example Methods

FIG. 7 depicts methods 700 for use of a lockable display. These methods are shown as sets of blocks that specify operations performed but are not necessarily limited to the order shown for performing the operations by the respective blocks. In portions of the following discussion reference may be made to environment 100 of FIG. 1 and entities detailed in FIGS. 2-6, reference to which is made for example only. The techniques are not limited to performance by one entity or multiple entities operating on one device.

Block 702 receives an indication that a lockable display has locked to, or is beginning a process to lock to, a computing device or an existing display associated with the computing device, the computing device presenting content on the existing display. As noted above, controller 110 may lock a lockable display to another device responsive to various indications, selections, sensor data, and so forth, which may occur prior to, during, or subsequent to blocks 702 and/or 704. The indication can be received in various manners, such as through sensor data from a hall-effect sensor, magnetic-field proximity, physical proximity, and so forth.

Methods 700 may, if the lockable display is not yet locked, lock the lockable display to the computing device or existing display, as shown at block 704. For example, controller 110 may receive a communication indicating that a lockable display's lock region is sufficiently near to a device's lock region at block 702 and thus power an actuator to lock the lockable display to the device. While not required, controller 110 may also communicate with an operating system or other entity of the device to request permission to lock. By so doing controller 110 may cause interface module 124 to request a user's permission, such as through a button, interface control, or other manner, to lock. This permission may be requested through either the lockable display or the device, generally the one of the two that includes the actuator. As noted in part above, this permission may be enabled through an external sensor through which user input can be received (e.g., not part of a touch-sensitive screen of a display). An example external sensor is capacitive sensor 210 of FIG. 2. The selection made can be simple or complex, such as complex or unique gesture associated with locking or unlocking the lockable display (e.g., two circles, a figure eight, etc.). Complex or unique gestures can aid in reducing accidental locking or releasing of the lockable display. External sensors can reduce power consumption of that of on-screen controls and can be faster to user, though they are not required.

As part of locking the lockable display, controller 110 may assist the locking in addition to actuating a switchable magnetic or mechanical lock, such as guiding lock regions using a magnetic flux fountain. This magnetic flux fountain provides an orienting force to orient the devices (e.g., lock regions, magnetic or mechanical) together, such as to orient magnetically permeable material in lock region 304 to retention structure 206, as shown in FIG. 3. Magnetic flux fountains can be provided through use of low-power permanent magnets 208, electro-magnets, or through a partial rotation of permanent magnet 514 (non-null and non-full), to name but a few examples. While various examples of a magnetic locking structure are given, note that the lockable display can be locked to another device using a physical mechanism. Example physical mechanism include crossbars, multiple rotary latches, and spiral locks.

Block 706 causes the computing device to switch presentation of the content from the existing display to the lockable display or to present the content jointly over the existing display and the lockable display. Block 706 may do so without user selection or interaction other than to lock the lockable display. Thus, controller 110 may lock the lockable display and cause, prior to, during, or subsequent to causing a presentation change. Further, prior to or as part of block 706, controller 110 may alter or initiate a communication between the lockable display and the device, such as to cause a communication between a lockable display and a computing device providing content, or to indicate to the device that the lockable display is capable of receiving content for presentation. Content may include one or more user interfaces or presentations within or outside these user interfaces, such as pages of an electronic book, a desktop, a full-screen movie or video, one or more spreadsheets or word-processing documents, and webpages, to name but a few examples.

Alternatively or in addition, methods 700 may proceed to blocks 708 and 710 prior to block 712 and 714. Block 708 receives selection to release the lockable display, such as through interface module 124, which passes this selection to controller 110, which then, at block 710, releases the lockable display. In one example, controller 110 causes actuator 120 to rotate permanent magnet 116 to substantially reduce or eliminate a magnetic holding force between the existing display or the computing device and the lockable display.

Block 712 receives an indication that the lockable display has been detached. This can be received in similar manners to indications of block 702.

Block 714 ceases to switch the content or to present jointly the content on the existing display and the lockable display. As part of, or prior to block 714, the techniques may alter or cease communication between the lockable display and the device providing content. For example, controller 110 may, responsive to powering an actuator to release a device from a lockable display, alter or cease a communication between the device and the display or turn off the lockable display or cease its presentation of content.

Consider, by way of illustration, FIG. 8, which illustrates three examples of lockable display 102-4 locked to devices and orientations of these locked formats, book format 802, angled keyboard format 804, and flat keyboard format 806.

At book format 802, lockable display 102-4 is locked to tablet 102-2 in a portrait orientation and at an angle. At angled keyboard format 804, lockable display 102-4 is locked to tablet 102-2 in a landscape orientation and at an angle. At flat keyboard format 806, lockable display 102-4 is locked to smartphone 102-3 in a landscape orientation and not at an angle. In each of these cases, lockable display 102-4 locks to the existing device at an orientation and format.

Controller 110 may determine, receive, or cause on selection this orientation or format. Based on this format and orientation, controller 110 may cause, at block 706, the computing device to switch presentation or to present the content jointly. Thus, for angled and flat keyboard formats 804 and 806, controller 110 may cause interface module 124 of FIG. 1 to present data-entry or a control user interface (e.g., a soft keyboard) on one of displays (e.g., on smartphone 102-3's display). In so doing, controller 110 may also cause a switch of presentation of content previously on the device's display to lockable display 102-4. Thus, if smartphone 102-3 is showing a website's content, controller 110 causes a switch of that content, at a larger size, to lockable display 102-4. A keyboard may not have been shown or if shown was likely at a small size, but now is shown on more or all of smartphone 102-3's display, thereby enabling both easier typing and better enjoyment of the content of the website.

For book format 802, controller 110 may cause content to be presented jointly on these displays, which may increase an amount of content shown or simply expand the size of the content. Consider a case where a user is reading a book on the existing display of tablet 102-2 prior to locking lockable display 102-4 into book format 802. On locking lockable display 102-4, controller 110 causes interface module 124 to either present the text of the page that was read larger to cover both screens (e.g., a first paragraph fitting one display and a second paragraph fitting the other display) or instead cause interface module 124 to present an additional page on one of the displays.

FIG. 9 provides other example formats, upright dual-screen format 902 and upright triple-screen format 904. For upright dual-screen format 902, controller 110 may jointly present content, similar to book format 802 but, based on the angle, instead cause interface module 124 to spread out content, such as to show a movie split across both displays in one interface. Note that lockable display 102-4 and tablet 102-2's displays have a same or substantially similar height and width dimension. This and similar information may also be used by the techniques in determining ways in which to alter presentations, such as to content to be presented jointly over the lockable display and the existing display (e.g., the movie or video program) due to the displays presenting a consistent video height.

For upright triple-screen format 904, controller 110 may cause content to be altered sufficient to occupy various displays. Note that controller 110 may do so after previously altering presentation when a first of the two lockable displays was locked. On locking or the process of locking the second of the two lockable displays to laptop 102-1 (e.g., through lock regions 506 and 510 of FIG. 5), controller 110 may again alter presentation, such as to move a desktop or primary display to a first lockable display 102-4-1 and present interfaces for two active windows or immersive experiences on each of laptop 102-1's display and second lockable display 102-4-2. Note that this is one of the possible uses of laptop 102-1 having two switchable locks as noted for FIG. 5 or for having two lock regions if both of the lockable displays instead have the switchable locks.

As noted, the techniques may switch, alter, and otherwise cause changes to presentations with little or no interaction from a user, thereby enabling seamless functional integration of a lockable display to a computing device.

The techniques may lock and release the lockable display in many different manners. For example, controller 110 may cause magnetic-lock actuator 122 of FIG. 1 to move permanent magnet 116 relative to magnetic-field directors 118 or magnetic-field directors 118 relative to permanent magnet 116 effective to direct the magnetic field to a lock or unlock state. This moving of the permanent magnet or magnetic-field directors may be a rotation along a long axis of the permanent magnet. The moving can instead be a lateral movement relative to multiple sets of magnetic-field directors, such as by moving one set of magnetic-field directors that null the magnetic field proximate or distant the permanent magnet and distant or proximate another set directing the magnetic field to a magnetically permeable material. Various other movements based on other structures of permanent magnets and magnetic-field directors are also envisioned.

The preceding discussion describes methods relating to lockable displays. Aspects of these methods may be implemented in hardware (e.g., fixed logic circuitry), firmware, software, manual processing, or any combination thereof. A software implementation represents program code that performs specified tasks when executed by a computer processor. The example methods may be described in the general context of computer-executable instructions, which can include software, applications, routines, programs, objects, components, data structures, procedures, modules, functions, and the like. The program code can be stored in one or more computer-readable memory devices, both local and/or remote to a computer processor. The methods may also be practiced in a distributed computing mode by multiple computing devices. Further, the features described herein are platform-independent and can be implemented on a variety of computing platforms having a variety of processors.

These techniques may be embodied on one or more of the entities shown in FIGS. 1-6, and 8-10 (device 1000 is described below), which may be further divided, combined, and so on. Thus, these figures illustrate some of the many possible systems or apparatuses capable of employing the described techniques. The entities of these figures generally represent software, firmware, hardware, whole devices or networks, or a combination thereof. In the case of a software implementation, for instance, the entities (e.g., controller 110 and interface module 124) represent program code that performs specified tasks when executed on a processor (e.g., processor(s) 114). The program code can be stored in one or more computer-readable memory devices, such as storage media 112 or computer-readable media 1014 of FIG. 10.

Example Device

FIG. 10 illustrates various components of example device 1000 that can be implemented as any type of client, server, and/or computing device as described with reference to the previous FIGS. 1-9 to implement a lockable display. In embodiments, device 1000 can be implemented as one or a combination of a wired and/or wireless device, as a form of television mobile computing device (e.g., television set-top box, digital video recorder (DVR), etc.), consumer device, computer device, server device, portable computer device, user device, communication device, video processing and/or rendering device, appliance device, gaming device, electronic device, System-on-Chip (SoC), and/or as another type of device or portion thereof. Device 1000 may also be associated with a user (e.g., a person) and/or an entity that operates the device such that a device describes logical devices that include users, software, firmware, and/or a combination of devices.

Device 1000 includes communication devices 1002 that enable wired and/or wireless communication of device data 1004 (e.g., received data, data that is being received, data scheduled for broadcast, data packets of the data, etc.). Device data 1004 or other device content can include configuration settings of the device, media content stored on the device, and/or information associated with a user of the device. Media content stored on device 1000 can include any type of audio, video, and/or image data. Device 1000 includes one or more data inputs 1006 via which any type of data, media content, and/or inputs can be received, such as human utterances, user-selectable inputs (explicit or implicit), messages, music, television media content, recorded video content, and any other type of audio, video, and/or image data received from any content and/or data source.

Device 1000 also includes communication interfaces 1008, which can be implemented as any one or more of a serial and/or parallel interface, a wireless interface, any type of network interface, a modem, and as any other type of communication interface. Communication interfaces 1008 provide a connection and/or communication links between device 1000 and a communication network by which other electronic, computing, and communication devices communicate data with device 1000.

Device 1000 includes one or more processors 1010 (e.g., any of microprocessors, controllers, and the like), which process various computer-executable instructions to control the operation of device 1000 and to enable techniques for, or in which can be embodied, a lockable display. Alternatively or in addition, device 1000 can be implemented with any one or combination of hardware, firmware, or fixed logic circuitry that is implemented in connection with processing and control circuits which are generally identified at 1012. Although not shown, device 1000 can include a system bus or data transfer system that couples the various components within the device. A system bus can include any one or combination of different bus structures, such as a memory bus or memory controller, a peripheral bus, a universal serial bus, and/or a processor or local bus that utilizes any of a variety of bus architectures.

Device 1000 also includes computer-readable media 1014, such as one or more memory devices that enable persistent and/or non-transitory data storage (i.e., in contrast to mere signal transmission), examples of which include random access memory (RAM), non-volatile memory (e.g., any one or more of a read-only memory (ROM), flash memory, EPROM, EEPROM, etc.), and a disk storage device. A disk storage device may be implemented as any type of magnetic or optical storage device, such as a hard disk drive, a recordable and/or rewriteable compact disc (CD), any type of a digital versatile disc (DVD), and the like. Device 1000 can also include a mass storage media device 1016.

Computer-readable media 1014 provides data storage mechanisms to store device data 1004, as well as various device applications 1018 and any other types of information and/or data related to operational aspects of device 1000. For example, an operating system 1020 can be maintained as a computer application with computer-readable media 1014 and executed on processors 1010. Device applications 1018 may include a device manager, such as any form of a control application, software application, signal-processing and control module, code that is native to a particular device, a hardware abstraction layer for a particular device, and so on.

Device applications 1018 also include any system components, engines, or modules to implement a lockable display. In this example, device applications 1018 include controller 110 and interface module 124.

CONCLUSION

Although embodiments of techniques using, and apparatuses including, lockable displays have been described in language specific to features and/or methods, it is to be understood that the subject of the appended claims is not necessarily limited to the specific features or methods described. Rather, the specific features and methods are disclosed as example implementations of lockable displays. 

What is claimed is:
 1. A computer-implemented method comprising: receiving an indication that a lockable display has locked to, or is beginning a process to lock to, a computing device or an existing display associated with the computing device, the computing device presenting content on the existing display; and causing the computing device to switch presentation of the content from the existing display to the lockable display or to present the content jointly over the existing display and the lockable display, the causing performed without user selection or interaction other than to lock the lockable display.
 2. A method as described in claim 1, wherein the indication is received through a sensor, the indication indicating that the lockable display is beginning the process to lock to the existing display or the computing device and further comprising, responsive to the indication, assisting the locking using a magnetic flux fountain, the magnetic flux fountain providing an orienting force to orient the lockable display to a retention structure of the computing device or the existing display.
 3. A method as described in claim 1, wherein the lockable display locks to the existing display or the computing device using a diametrically magnetized magnet having a magnetic field and magnetic-field directors proximate the diametrically magnetized magnet, the diametrically magnetized magnet locking or releasing responsive to rotation of the diametrically magnetized magnet effective to cause the magnetic-field directors to direct the magnetic field.
 4. A method as described in claim 3, wherein the indication indicates that the lockable display is beginning the process to lock to the existing display or the computing device and further comprising causing an actuator to rotate the diametrically magnetized magnet effective to cause the magnetic-field directors to direct the magnetic field to lock the lockable display to the existing display or the computing device.
 5. A method as described in claim 1, wherein the lockable display locks to the existing display or the computing device using a physical mechanism capable or locking and releasing the lockable display from the existing display or the computing device.
 6. A method as described in claim 1, wherein the lockable display locks to the existing display, the lockable display and the existing display having a same or substantially similar dimension, and causing the computing device to switch or present the content jointly presents the content jointly over the lockable display and the existing display.
 7. A method as described in claim 6, wherein presenting the content jointly is effective to present the content over the lockable display and the existing display as a single user interface.
 8. A method as described in claim 1, further comprising: receiving an orientation of the lockable display; and determining, based on the orientation, whether to cause the computing device to switch presentation or to present the content jointly.
 9. A method as described in claim 1, wherein the lockable display locks to the computing device and causing the computing device to switch or present the content jointly switches the content to the lockable display and further comprising presenting a data-entry or control user interface on the existing display.
 10. A method as described in claim 1, further comprising: receiving selection to release the lockable display; responsive to selection, causing an actuator to release the lockable display from the existing display or the computing device; receiving an indication that the lockable display has been released; and ceasing to switch the content or to present jointly the content on the existing display and the lockable display.
 11. A lockable display comprising: a lock region; a diametrically magnetized magnet having a magnetic field; magnetic-field directors proximate the diametrically magnetized magnet and the lock region; an actuator capable of rotating the diametrically magnetized magnet between a first position and a second position, the first position causing the magnetic-field directors to null or substantially weaken the magnetic field and the second position causing the magnetic-field directors to direct the magnetic field to the lock region; and a controller capable of powering the actuator to rotate the diametrically magnetized magnet between the first position and the second position, the rotation capable of releasing a device having a magnetically permeable material from the lock region or locking the device having the magnetically permeable material to the lock region.
 12. The lockable display as described in claim 11, wherein the controller is further capable, responsive to powering the actuator to lock the device to the lock region of the lockable display, of causing content to be received and displayed.
 13. The lockable display as described in claim 11, wherein the controller is further configured to receive, from the device, a communication indicating that the lockable display is sufficiently near to a second lock region of the device, and responsive to the communication, powering the actuator to lock the device to the lockable display.
 14. The lockable display as described in claim 11, wherein the controller is further configured to receive, from the device, a communication indicating that the lockable display is sufficiently near to a second lock region of the device, and responsive to the communication, causing a screen of the lockable display to request approval to lock the device to the lockable display and, responsive to receiving selection to lock the lockable display to the device, powering the actuator to lock the device to the lockable display.
 15. The lockable display as described in claim 11, wherein the controller is further configured to receive, from the device, a communication indicating that the lockable display is sufficiently near to a second lock region of the device, and, responsive to the communication, assisting the locking using a magnetic flux fountain, the magnetic flux fountain providing an orienting force to orient the lockable display to a retention structure of the device.
 16. The lockable display as described in claim 11, wherein the lock region includes a retention structure, the retention structure having a non-smooth surface capable of reducing a shear force or redirecting a shear force to a strain force.
 17. The lockable display as described in claim 11, wherein the lockable display further comprises an external sensor through which user input can be received, the external sensor not part of a touch-sensitive screen of the lockable display, and wherein the controller is further capable of receiving a gesture made to the external sensor and, responsive to the gesture, powering the actuator to rotate the diametrically magnetized magnet to release or lock the lockable display and the device.
 18. The lockable display as described in claim 17, wherein the gesture made to the external sensor is complex and unique.
 19. A computing device comprising: a lock region; a diametrically magnetized magnet having a magnetic field; magnetic-field directors proximate the diametrically magnetized magnet and the lock region; an actuator capable of rotating the diametrically magnetized magnet between a first position and a second position, the first position causing the magnetic-field directors to null or substantially weaken the magnetic field and the second position causing the magnetic-field directors to direct the magnetic field to the lock region; and a controller capable of powering the actuator to rotate the diametrically magnetized magnet between the first position and the second position, the rotation capable of releasing a lockable display having a magnetically permeable material from the lock region or locking the lockable display having the magnetically permeable material to the lock region.
 20. A computing device as described in claim 19, further comprising one or more computer processors and one or more computer-readable storage media having instructions thereon that, responsive to execution by the one or more processors, implement an interface module, the interface module capable of performing operations comprising: receiving an indication that the lockable display has locked to, or is beginning a process to lock to, the lock region of the computing device; and responsive to the indication, switching presentation to the lockable display or presenting jointly content currently presented on an existing display associated with the computing device. 